Window ventilator



@cit. 3Q, 1923.

J. DYKEMA WINDOW VENTILATOR Filed April 15 1922 INVENTOR.

15605 fiyiiiza.

AOY.

Patented get. 3@, i923.

UNETEB STATES I 'lfiihdfiti lPfilTEhlT @FEFEQE;

JACOB DYKEMA, OF llIIUSKEGON, MICHIGAN.

WINDOW VENTILATOR.

Application filed. April 15,

T 0 all to 7mm it may concern Be it known that I, JAcon DYKEMA, a citizen of the United States, residing at llluskegon, in the county of Muskeg'on and State of hiiichigan, have invented certain new and usefulimprovements in Vindow Ventilators, of which the following is a specification.

This invention relates to .in'iprovenients in window ventilators, and has for its object, to provide in a manner as hereinafter set forth, a window screen structure for use in connection as a sleeping or a bath room ventilator and which may be placed under the window sash to provide a screened air intake, and with the structure of the device so set up as to produce an indirect ventilator and to overcome a direct draft.

The invention is .so free from the production of direct draft that a bed may be placed immediately in front of the window without danger of harm to the occupant of the bed and is of great value when used in a sick room or in other like location.

In accordance with the invention, the indirect-draft screen is arranged to occupy only the lower portion of the window, while the upper portion of the window is occupied by the window sash elevated to permit the location of the window screen at a relatively low point.

. The window screen itself is intermediately hinged so that it may be placed in the window sash between the usual window beads, and in order to permit the window screen to be applied to and removed readily, such screen. is so constructed as to prevent any direct draft upon the sleeper.

In accordance with the invention, the deflecting structure when turned on its intern'iedia-te hinge into an alined position fits l etween the sash beads and is then extended so as to occupy the space usually occupied by the sash and will readily hold its position without danger of slipping from the lodged position in the window casing.

The inner face of the removable ventilator deflecting structure, is in the form of a triangular structure, into which air may readily enter from the outside of the window, but the screen portion of the structure will prevent the entrance of any in sect or the like into the room, wherefore no annoyance is caused to the occupant of the room.

The invention will be best understood 1922. Serial No. 552,971.

from a consideration of the following detailed description taken in connection with the accompanying drawings forming part of this specification, with the understanding that the invention is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications mark no material departure from the salient features of the invention as expressed in the appended claim.

In the drawings Figure 1 is a perspective view of the lower portion of a window sash with the invention applied.

Fig. 2 is a section on the line 22 of Fig. 1. i

Fig. 3 is an out-of-door elevation of the structure shown in Fig. 1.

Fig. 4 is a section on the line l4c of Fig. 2.

Referring to the drawings, there is shown a window frame 1, which may be of ordinary construction and therefore requires no specific description.

The window frame is shown as provided with sash heads 2 to which are fitted frames 3, which may be joined end to end by hinges 4 or otherwise, together forming a frame structure long enough to extend from one side to the other of the structure made up of the hinged frames 3.

That portion of the frame 3 presented toward the outside of the window frame is provided with border moldings 5, so arranged as to hold wire netting 6 in each frame carrying th screen 6. i

The two frames 3 are held together by the hinges 4: and when the frames are in alinement, the frames 3 extend from end to end of the window sash and have tongues 7 at the outer ends entering between the molding 2, so that under ordinary conditions of use, the frames 3 may be made to hold their position in the window sash without liability of. escaping therefrom.

By disalining the frames 3 and breaking their aline-ment at the hinges 4:, the joined frames may be introduced into the window frame or removed therefrom at the will of an operator.

When the twin frames are placed in the window frame and straighten out, they will effectively resist displacement, and no ordinary forces to which the hinged frames may be subjected will affect them.

What is claimed is V A non-draft Window screen comprising a pair of frames of substantially triangular crossvsection with the broad face covered 5 With screen mesh and hinged together at the meeting ends, and of a combined length tolock in alinement between the sash beads of a Window frame the ends of the frames being open to the exterior atmosphere, the angularly disposed faces of the frame being imperforate.

In testimony whereof, I aflix my signature hereto.

JACOB DYKEMA. 

